Tsinghua University

Ching-Che Hung

Hsueh-Shih Chen

Cheng-Wei Chang

Chang-Wei Yeh

Kai-Cheng Wang

Guan-Hong Chen

A method for preparing a quantum dot mixture with a bimodal size distribution includes steps of: a) preparing a mixed cationic precursor solution, b) preparing a first anionic precursor solution and a second anionic precursor solution, c) conducting a nucleation reaction at a nucleation temperature for a predetermined nucleation time, and d) conducting a crystallite growth reaction at a crystallite growth temperature for a predetermined crystallite growth time.

Method for preparing a quantum dot mixture with a bimodal size distribution

A quantum dot nanocrystal structure includes: a core of a compound M1A1, wherein M1 is a metal selected from Zn, Sn, Pb, Cd, In, Ga, Ge, Mn, Co, Fe, Al, Mg, Ca, Sr, Ba, Ni, Ag, Ti and Cu, and A1 is an element selected from Se, S, Te, P, As, N, I, and O; an inner shell having a composition containing a compound M1M2A1A2, wherein M2 is a metal selected from Zn, Sn, Pb, Cd, In, Ga, Ge, Mn, Co, Fe, Al, Mg, Ca, Sr, Ba, Ni, Ag, Ti and Cu, A2 is an element selected from Se, S, Te, P, As, N, I and O; and a multi-pod-structured outer shell of a compound M1A2 or M2A2 enclosing the inner shell and having a base portion and protrusion portions extending from the base portion.

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Ching-Che Hung